Everyone must have seen such a plot picture, two guerrillas hiding behind cover, from the scope to see the enemy vehicle approaching their side, and when they entered the effective range, they pulled the trigger, and a rocket flew out with a "whoosh", and after the target was hit, it exploded and scattered in all directions. Pen % fun % Pavilion www.biquge.info

Thinking that he could also come into contact with such a magical weapon, Yang Wenbin, like other students, was very excited.

From the information, they learned that the rocket launcher is an infantry anti-tank and offensive weapon, which has the characteristics of light weight, short range, low price, and suitable for a large number of equipment. Today, with the outstanding performance of anti-tank missiles, rocket launchers are still equipped in large numbers of grassroots infantry units, becoming infantry short-range armor-piercing weapons, and can even be used as short-range support artillery. It is characterized by being rough, cheap, easy to operate, but powerful. It is a very popular weapon used by infantry and guerrillas all over the world.

The armies of more than 40 countries in the world are equipped, and many countries have copied them.

The Type 69 40mm rocket launcher, a type of rocket-propelled grenade (RPG), manufactured by our Southern Industries Corporation, is the domestic version of the former Soviet RPG-7, which entered service in the early seventies. The Type 69 rocket launcher is an anti-tank weapon commonly used by our army; However, in order to better meet the needs of modern warfare, a new type of rocket-propelled grenade has been developed in the eighties and nineties.

The 240-millimetre anti-tank rocket-propelled grenade was acquired in the early fifties and began to be copied in the late fifties. It was finalized in the seventies and began to serve in the army. Its firing range is 3 times that of the old 40 fire, its power has increased significantly, and it uses an optical sight, which can determine the target distance, and can correct the target speed and the influence of wind on the trajectory.

In a standard infantry squad, there will be two Type 69 rocket operators, each carrying a Type 69 rocket launcher and three grenades. There are also two assist launchers, each carrying 3 grenades. There were two Type 69 rocket launchers and 12 grenades in one squad. In addition to being equipped in our army, the Type 69 exported to countries includes the guerrillas of Central Asian country A.

The Type 69 Type 40 rocket launcher is a shoulder-mounted muzzle-loaded anti-tank and anti-personnel recoilless gun-type bazooka. Its 40 mm barrel can fire a variety of grenades with a stabilized tail beyond the muzzle diameter. A recoilless cannon bazooka is a rocket launcher that uses a launcher as a barrel to directly withstand the combustion pressure of rocket propellant. Due to the pressure on the tube, the walls are thick and bulky.

When the primer of the rocket is fired, the propellant in the chamber is ignited, and the gunpowder gas expands and ejects through the rear nozzle of the cartridge while expanding in the chamber, and pushes the rocket forward to make it fly out of the barrel opening. The tail nozzle of the launch canister plays the role of improving the energy utilization rate of gunpowder and balancing (i.e., no recoil) of the launch canister. The muzzle velocity of the rocket is 120m/s. Due to the inertial delay ignition mechanism of the rocket due to the launch overload, when the rocket flies out of the muzzle 10~14m, the gunpowder delay insurance of the tail fuse is opened, and the rocket engine charge is ignited. The engine is a reversible multi-nozzle microspin structure, and at the end of the active stage, the speed of the rocket reaches 295 m/s.

The tail fin provides the stable moment of the rocket's flight, and the integrated steering of the bottom screw, the tail fin and the inclined nozzle of the engine make the rocket deviate from the windless trajectory caused by the thrust and mass eccentricity caused by the rocket being properly corrected, thereby improving the shooting accuracy.

The electric-2 piezoelectric fuse with the 69 type 40 bazooka is divided into two mechanisms, the head mechanism is the ignition energy of the fuse, mainly composed of ceramic piezoelectric crystals and lines, when the rocket hits the tank, the crystal produces a high potential difference at both ends under the action of collision, this potential difference is connected by the electric detonator of the wire and the tail fuse, like an electronic lighter, the electric detonator is detonated by an electric spark, so that the warhead charge explodes, and the explosion makes it form a metal jet and penetrate the steel armor. Compared with the Type 56 elastic bottom mechanical fuse, the ceramic piezoelectric crystal improves the instantaneousness, ensures the exertion of the warhead energy, and improves the armor-piercing performance.

The ordinary sight only has a direct aiming function, which is used for armor-piercing bullets, with a magnification of 2.7 times, a field of view of 13 °, an action distance of 50-500 meters, a weight of 0.9 kg, and the aiming has temperature correction, ranging and speed measurement, and crosswind correction functions, which improve the shooting accuracy and correct the deviation of the drop point compared with the mechanical sight.

The General Optical Sight Type 69-1 adds a universal optical sight, which is suitable for all types of bombs, and can give the bazooka a maximum firing angle of 35 °, and the range measurement and aiming are combined into one, which is easy to operate. The improved version of the universal optical sight has added a wind deviation corrector, which directly displays the wind speed and direction correction caused by the cross wind at the mouth of the barrel in the scope, which solves the shooting error caused by the shooter's estimation and judgment of the wind speed at the mouth of the barrel in the past, and the hit rate is as high as 80-90%. The universal sight is currently a common equipment.

The I-type infrared sight is an active night vision device, with a magnification of 2.9 times, a field of view of 8 °, a night vision distance of 200 meters without starlight, and a continuous working time of 3 hours. If the opponent's armored vehicle uses infrared, it can use the opponent's infrared for aimed fire. It has the ability to fight in the dark night without starlight.

The Type II infrared sight is an improved version of the Type I, with an increased range of action to 250 meters, and a combination of detection and sight is adopted. Due to the separation of the battery and the main unit, the weight of the main unit is reduced (1.4 kg), and the operation is stable and reliable.

The second-generation low-light sight is a passive night vision device, with a range of 300-400 meters, a magnification of 3.2 times, a field of view of 14.5 °, and a weight of 1.2 kilograms, making the Type 69-1 capable of starry night operations.

Although there have been no major design improvements since its introduction thirty years ago, a large number of new grenades developed during this period can still be used, including:

The Type 69-I anti-tank grenade (HEAT) is a standard anti-tank grenade developed by our army in the eighties. The hollow warhead increases its armor-piercing capabilities. The Type 69-II high-explosive anti-tank grenade (HEAT) was modified to target modernized armored vehicles equipped with anti-tank missiles. The range of modifications to the Type 69-III high-explosive anti-tank grenade (HEAT) includes increased range and further enhanced armor-piercing capabilities. The Type 84 high-explosive anti-tank grenade (HEAT) is lighter and will not be affected by crosswinds when flying, making it suitable for long-range attacks. The Type 69 40mm air-bombed anti-personnel high-explosive grenade (HE) is mainly used to attack living targets. When the grenade hits the ground, it will explode at a height of 2 meters, ejecting about 800 anti-personnel steel balls, which can be made into a 15-meter radius of death. High-explosive / high-explosive anti-tank grenade (HE/HEAT) - used in anti-personnel and anti-tank combat. It contains 1,500 prefabricated fragments with a 20-metre radius. Anti-personnel high-explosive incendiary grenade (EI) - designed for mountain and forest combat environments, the 900 steel balls and 2000-3000 granular incendiary agents will disperse in the event of an explosion with a radius of more than 15 meters. Front and rear tandem double-warhead anti-tank grenades - intended for use in the 90s for piercing through reactive armor. Only light vehicles can be destroyed, such as armored personnel carriers, armored combat vehicles, etc. Flares - Equipped with a mini-parachute, allowing it to levitate in the air when used. It has an effective range of 600 meters if a suppression ring is used and 1,500 meters if it is not used.

The tactical-technical performance of the Type 69 rocket launcher was as follows:

Caliber 40 mm, launch canister mass 5.6 kg, launch canister length 910 mm,

Rocket: 2.25 kg weight, effective range 300 meters, power (armor depth) 110 mm / 65 degrees;

Rocket Type 1: 2.1 kg weight, effective range 300 meters, power (armor depth) 150 mm / 65 degrees;

Rocket Type 2: 2.8 kg, effective range 200 meters, power (armor depth) 180 mm/65 degrees.

Rocket Type 3 (main armament): 2.26 kg, effective range 290 meters, power (armor depth) 180 mm/65 degrees

Since it was a matter of understanding the subject, after taking two theoretical lessons, I moved to the live-fire stage.

At the Xishan training ground, the guards are all over the four corners, and the target site is empty.

With the swing of the command flag, the shooters pulled the trigger, and the rockets landed accurately on the tank target on the hillside 300 meters away. This was the last live-fire lesson of the shooting class.

Listening to the explosion of the shells, Yang Wenbin was a little scared in his heart, mixed with excitement, looking forward to being able to quickly fire two rounds and experience the feeling of live ammunition.

Finally it was his turn.

He grabbed two rockets from his waist, carefully moved them to the launcher, quickly loaded the bombs, removed the safety, and waited for the launch.

Through the scope, correct the deviation of the wind direction, aim the intersection at the "tank" on the slope, and pull the trigger.

With a "whoosh", there was a thick smoke in front of him, and the "bang" exploded, and the ears began to chirp with a "buzz".

"Whoosh" and "Whoosh", the rockets of other shooters were also launched one after another, composing a wonderful symphony.

It was 3 p.m. on the 12th. The "buzzing" sound in the ears did not stop with the end of the shooting, but became louder, and the words of others were heard in the ears as if the radio was not on power, hissing, and it was impossible to distinguish what was being said, and the feeling at that time was like that of a deaf person, and it was necessary for others to shout in the ear to be heard.

In the evening, the buzzing sound turned into a humming sound, one moment loud, the other small, the deafening of the four-O fire was still so violent, what kind of scene would it be if the artillery was rumbling all day long on the battlefield, at this time he was somewhat considerate of the artillery brothers.

The rumbling of the ear drum continued for twelve hours, and the next morning it was still screaming, but much less intense.